+ * Revision 1.11 1995-11-22 17:19:19 adam
+ * Record management uses the bfile system.
+ *
+ * Revision 1.10 1995/11/21 15:01:16 adam
+ * New general match criteria implemented.
+ * New feature: document groups.
+ *
+ * Revision 1.9 1995/11/21 09:20:32 adam
+ * Yet more work on record match.
+ *
+ * Revision 1.8 1995/11/20 16:59:46 adam
+ * New update method: the 'old' keys are saved for each records.
+ *
+ * Revision 1.7 1995/11/20 11:56:28 adam
+ * Work on new traversal.
+ *
+ * Revision 1.6 1995/11/17 15:54:42 adam
+ * Started work on virtual directory structure.
+ *
+ * Revision 1.5 1995/10/17 18:02:09 adam
+ * New feature: databases. Implemented as prefix to words in dictionary.
+ *
+ * Revision 1.4 1995/09/28 09:19:46 adam
+ * xfree/xmalloc used everywhere.
+ * Extract/retrieve method seems to work for text records.
+ *
+ * Revision 1.3 1995/09/06 16:11:18 adam
+ * Option: only one word key per file.
+ *
+ * Revision 1.2 1995/09/04 12:33:43 adam
+ * Various cleanup. YAZ util used instead.
+ *
+ * Revision 1.1 1995/09/01 14:06:36 adam